CoolJumper YYK-Q16 Wireless Open-Ear Headphones User Manual

1. Product Overview

The CoolJumper YYK-Q16 are 2025 model wireless open-ear Bluetooth 5.4 headphones designed for comfort and active lifestyles. Featuring a unique ear hook design, they provide a secure fit without entering the ear canal, reducing pressure and fatigue. With a long battery life, LED display, and IP7 waterproof rating, they are ideal for sports and daily use.

Image: The CoolJumper YYK-Q16 open-ear headphones resting in their charging case, with the LED display showing battery levels.

Image: A visual representation of the CoolJumper open-ear wireless earbuds design, highlighting the multi-point support system for weight distribution and a perfect fit.

2. What's in the Box

• 2 x CoolJumper YYK-Q16 Open-Ear Bluetooth 5.4 Earbuds
• 1 x Charging Case
• 1 x USB-C Charging Cable
• 1 x User Manual
• 1 x Product Box

Image: An illustration showing all components included in the CoolJumper YYK-Q16 package: the earbuds, charging case, USB-C cable, and user manual.

3. Setup and First Use

3.1 Charging the Headphones and Case

Before first use, ensure both the headphones and the charging case are fully charged. The case features an LED display to show the battery level of both the case and individual earbuds.

• Connect the provided USB-C charging cable to the charging port on the case.
• Plug the other end into a USB power adapter (not included) or a computer's USB port.
• The LED display on the case will show the charging progress. A full charge for the case takes approximately 1 hour.
• The earbuds provide up to 8 hours of playtime on a single charge, and the charging case extends this to a total of 50 hours.

Image: Visual showing the charging case with earbuds, highlighting 50 hours total playtime, 10 hours single playtime, and 1 hour fast charging via Type-C.

3.2 Pairing with Your Device (Bluetooth 5.4)

The CoolJumper YYK-Q16 headphones feature Bluetooth 5.4 for stable and low-latency connections. They support one-step pairing.

1. Ensure Bluetooth is enabled on your device (smartphone, tablet, laptop, etc.).
2. Open the charging case. The earbuds will automatically enter pairing mode.
3. On your device, search for Bluetooth devices and select "YYK-Q16" from the list.
4. Once connected, the earbuds will automatically reconnect to your device when the case is opened for subsequent uses.

Image: A visual demonstrating the improved Bluetooth 5.4 technology, emphasizing stable connection, lower latency, reduced power consumption, and a wider transmission range (15m).

3.3 How to Wear Your Open-Ear Headphones

The ergonomic ear hook design ensures a comfortable and secure fit, ideal for extended wear and physical activity.

1. Take out the earbuds from the charging case.
2. Hook the end of the earbud over the top of your ear.
3. Rotate the earbuds and slide them behind your ear, ensuring the speaker part is positioned near your ear canal without entering it.
4. Adjust the ear hook and pull down on the hook for a secure fit.

Image: A four-step visual guide demonstrating the correct way to wear the CoolJumper open-ear headphones for optimal comfort and security.

Image: A person wearing the CoolJumper open-ear headphones, illustrating their supreme comfort and perfect fit with ergonomic ear hooks, skin-friendly material, and ultralight design.

4. Operating the Headphones

4.1 Touch Controls

The CoolJumper YYK-Q16 headphones feature intuitive touch controls on each earbud for easy management of music, calls, and voice assistant.

Image: A detailed diagram illustrating the simple touch controls for the CoolJumper YYK-Q16 headphones, including actions for volume, playback, calls, and voice assistant.

4.2 Audio Features

Experience high-fidelity audio with the CoolJumper YYK-Q16 headphones.

• HiFi Stereo Sound: Equipped with a large 14.2mm speaker driver, these earbuds deliver excellent stereo sound quality with dynamic and impactful bass.
• ENC Noise Cancellation: Featuring 4 ENC (Environmental Noise Cancellation) microphones, the headphones effectively eliminate over 90% of background noise, ensuring clearer and more stable audio transmission during calls and video calls.

Image: A visual highlighting the premium sound quality, crystal clear calls, and high-fidelity audio delivered by the 14.2mm dynamic drivers of the headphones.

4.3 Compatibility

The CoolJumper YYK-Q16 headphones are compatible with a wide range of Bluetooth-enabled devices.

• Smartphones (iOS, Android)
• Tablets
• Laptops and Desktop Computers (PC, Mac)
• Smartwatches
• Smart TVs

Image: A graphic illustrating the wide compatibility of the headphones with various devices such as notebooks, desktops, watches, TVs, phones, and tablets.

5. Maintenance and Care

5.1 IP7 Waterproof Rating

The CoolJumper YYK-Q16 headphones are built with an IP7 waterproof standard, making them resistant to sweat and rain. This makes them suitable for sports and outdoor activities.

• Do not submerge the headphones in water for extended periods.
• Wipe them dry with a clean cloth after exposure to sweat or rain.
• Ensure the charging port is dry before charging.

5.2 General Care

• Clean the earbuds and charging case regularly with a soft, dry cloth.
• Avoid using abrasive cleaners or solvents.
• Store the headphones in their charging case when not in use to protect them and keep them charged.
• Avoid extreme temperatures and direct sunlight.

6. Troubleshooting

6.1 Resetting the Earbuds

If you experience connection issues or other malfunctions, you can try resetting the earbuds:

• Disconnect the earbuds from your phone or other paired device.
• With the earbuds out of the case, quickly press the touch button on the left earbud 5 times simultaneously.
• Place the earbuds back into the charging case and close it.
• Open the case again and attempt to re-pair with your device.

6.2 Common Issues

• No Sound:
  • Ensure earbuds are charged.
  • Check Bluetooth connection.
  • Adjust volume on both earbuds and device.
• Cannot Pair:
  • Ensure earbuds are in pairing mode (open case).
  • Turn off and on Bluetooth on your device.
  • Forget "YYK-Q16" from your device's Bluetooth list and try pairing again.
  • Try resetting the earbuds as described above.
• One Earbud Not Working:
  • Place both earbuds back in the case, close it, then open it again.
  • Ensure both earbuds are charged.
  • Try resetting the earbuds.

7. Specifications

Image: A comparison table highlighting the advantages of Air Conduction (Open-Ear) headphones like the YYK-Q16 over Bone Conduction and Traditional TWS earbuds, focusing on sound quality, comfort, and situational awareness.

8. Warranty and Support

For warranty information and customer support, please refer to the official CoolJumper website or contact the seller directly through your purchase platform. Keep your proof of purchase for any warranty claims.

Software updates are guaranteed until an unknown date. For the latest information and support resources, please visit the CoolJumper brand store on Amazon or their official website.

Visit the CoolJumper Store on Amazon